A four-way analog output device based on cib-bus
A technology of CIB-BUS and output devices, applied in simulators, program control, instruments, etc., can solve the problem of few output channels
Active Publication Date: 2019-01-11
华清智芯科技(北京)有限公司
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Problems solved by technology
[0003] In the prior art, the output signal of the analog output device based on the CIB-BUS bus is generally 4-20mA mode, and the output channel is relatively small
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[0020] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0021] Such as figure 1 As shown, the four-way analog output device based on the CIB-BUS bus of the present invention includes a bus network 1, a power conversion circuit 2, a bus coupler 3, a main control chip 4, a 10-bit D / A conversion circuit 5 and four An analog output conversion circuit 6, the bus network 1 is connected to the bus coupler 3, the bus coupler 3 is connected to the main control chip 4, and the power conversion circuit 2 is respectively connected to the bus network 1, the bus coupler 3 and the main control chip 4, the main control chip 4 is also connected to the 10-bit D / A conversion circuit 5, and the 10-bit D / A conversion circuit 5 is connected to the four-way analog output conversion circuit 6.
[0022] The power conversion circuit 2 is used to supply power to the bus network 1 , the bus coupler 3 and the main con...
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The invention discloses a CIB-BUS bus-based four-way analog output device. The CIB-BUS bus-based four-way analog output device comprises a bus network, a power source conversion circuit, a bus coupler, a main control chip, a 10-bit D / A conversion circuit and a four-way analog output conversion circuit, wherein the bus network is connected with the bus coupler, the bus coupler is connected with the main control chip, the power source conversion circuit is connected with the bus network, the bus coupler and the main control chip, the main control chip is connected with the 10-bit D / A conversion circuit, the 10-bit D / A conversion circuit is connected with the four-way analog output conversion circuit, the bus coupler is used for communicating with the bus network, and the main control chip is used for receiving communication commands from the bus network and controlling the four-way analog output conversion circuit according to the commands. With the CIB-BUS bus-based four-way analog output device adopted, control output of the current or voltage signals of an output loop can be realized; the current or voltage signals are converted into current or voltage signals of a corresponding proportion through a 10-bit D / A conversion channel in the module; and output signals can be optimally in a 5V mode, a 10V mode and a 4-20mA mode.
Description
technical field [0001] The invention relates to the technical field of electrical automation control, in particular to a four-way analog output device based on a CIB-BUS bus. Background technique [0002] CIB-BUS bus is a field bus technology. CIB-BUS bus integrates central air-conditioning, electrical switches, lighting, energy management, video surveillance, security protection, environmental monitoring and other equipment in the building, through a unified bus network Structure and control platform to realize centralized monitoring and management of these devices. [0003] In the prior art, the output signal of the analog output device based on the CIB-BUS bus is generally 4-20mA mode, and the output channels are relatively small. [0004] For example, Chinese patent document CN2563852A discloses a kind of digital video gateway, takes the reduced instruction set computer (RISC) 32-bit microcontroller as the core, single-chip video compression chip, Ethernet control chip,...
Claims
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IPC IPC(8): G05B19/042
CPCG05B19/0425G05B2219/21012G05B2219/21024
Inventor 张吉猛
Owner 华清智芯科技(北京)有限公司